Yes, "we live in a body, we are spirits, & we have souls"!
Certainly, the more we're positive, the more we keep seeing through no matter what & the more we will be able to make better decisions & collect better rewards.
WHY? Because thoughts initiate feelings, feelings lead to actions, actions give results. Such results create specific reactions that most of the time end with permanent irreversible effects. Therefore, developing the right mindset is the key to enjoy a more peaceful fulfilling life.